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This specification covers material for use as chloride-corrosion-inhibiting admixtures for concrete. Concrete must meet the physical requirements such as compressive strength and flexural strength. The test admixture must show corrosion-inhibiting performance with the required mean integrated macrocell current of test beams and mean corroded area of test beams as a fraction of control. At the completion of testing, the mean chloride-ion content of the test beams must be greater than or equal to the critical chloride-ion content. Two types of concrete are used to make test specimens. One, the control concrete, is made without the chloride-corrosion-inhibiting admixture. The other concrete, the test concrete, is made with the chloride-corrosion-inhibiting admixture. Tests of freshly mixed concrete include slump test, air content test, and time of setting test. Test of hardened concrete include compressive strength test, flexural strength test, resistance to freezing and thawing test, and length change test. Corrosion testing shall also be done.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
Significance and Use
1.1 This specification covers material for use as chloride-corrosion-inhibiting admixtures for concrete.
1.2 Results of the tests conducted to meet this specification are not to be used to rank the expected field performance of various chloride-corrosion-inhibiting admixtures.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use. (Warning
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
American Concrete Institute StandardACI211.1 Practice for Selecting Proportions of Normal, Heavyweight, and Mass Concrete Available from the American Concrete Institute, P.O. Box 9094, Farmington Hills, MI 48333-9094.
C39/C39M Test Method for Compressive Strength of Cylindrical Concrete Specimens
C78 Test Method for Flexural Strength of Concrete (Using Simple Beam with Third-Point Loading)
C125 Terminology Relating to Concrete and Concrete Aggregates
C143/C143M Test Method for Slump of Hydraulic-Cement Concrete
C150 Specification for Portland Cement
C157/C157M Test Method for Length Change of Hardened Hydraulic-Cement Mortar and Concrete
C231 Test Method for Air Content of Freshly Mixed Concrete by the Pressure Method
C260 Specification for Air-Entraining Admixtures for Concrete
C403/C403M Test Method for Time of Setting of Concrete Mixtures by Penetration Resistance
C494/C494M Specification for Chemical Admixtures for Concrete
C666/C666M Test Method for Resistance of Concrete to Rapid Freezing and Thawing
C1152/C1152M Test Method for Acid-Soluble Chloride in Mortar and Concrete
G15 Terminology Relating to Corrosion and Corrosion Testing
G109 Test Method for Determining Effects of Chemical Admixtures on Corrosion of Embedded Steel Reinforcement in Concrete Exposed to Chloride Environments
G180 Test Method for Initial Screening of Corrosion Inhibiting Admixtures for Steel in Concrete
ICS Number Code 77.140.15 (Steels for reinforcement of concrete)
UNSPSC Code 30111500(Concrete and mortars); 11101704(Steel)